Calculating-machine.



F. TRQKS 6L' C. SCHALLER. CALCULATING MACHINE.

APPLICATION FILED JAN. 5, 1912.

1,088,464, Patented Sept. 10, 1912.

3 SHEETS-SHEET Z.

UNITED STATES PATENT OFFICE.

FRANZ 'DRINKS AND CARL SCIIALLEB, 0F BRUNSWICK, GERMANY.

OALCULATIN`G-MACHINE Specieation of Letters Patent.

Patented Sept. 10, 1912.

Application led January 5, 1912. Serial No. 669,623.

formed by means of a single registering mechanism, for which purpose a set of numeralwheels located at one side of the machine is used for performing the multiplications (am, om, etc., while a set of numeral wheels located atthe other side of the machine is used for performing ther-,addition of the said products. Ordinarily calculations of this character show but small numbers. so thatI the sets of numeral wheels do not interfere with each other. However errors can occur by reason of the carrying mechanism which connects all the numeral, wheels from the lowest order to the highest order. For this reason it has heretofore been suggested to interrupt the carrying mechanism provided between the two sets of numeral wheels. v

The object of our improvements is to provide a carrying mechanism in which the member controlled by one numeral wheel and adapted to carry a ten to the numeral wheel of the next higher order is so constructed. that it can be thrown out of operative position from the outside of the casing.

ln describing the invention reference will be had to calculating' machines in which the values of thc calculation are set on setting disks b v shifting` the eorreslwnding number of teeth outward and transniitted to the numeral wheels of either set according to the position of the slide carrying the setting disks. and in which the carrying mechanisms consist of pins revolving with the numeral wheels and adapted to actu-ate rocking levers in the form of hammers. But we wish it to be understood, that our invention is not limited to the use in combination with the construction of the calculating machine described hereinafter, and that various changes may be made in the construct-ion of Ithe carrying mechanism and the device for throwing the same out of-operation.

In order vthat our invention be more clearly understood two examples embodying the same have been shown in the accompanying drawings in which the same letters of reference have been used in all the views to indicate corresponding parts.

In said drawingsfFigure 1, is a front view of a Acalculating machine of known construction in which our invention may be embodied, Fig. 2, is a vertical cross-section i taken on the line 2 2 of Fig.- 1, Fig. 3, is a similar cross-section showing one embodiment of our invention, and Fig. 4., is a similar cross-section showing a modification of the carrying mechanism which is adapted to be thrown out of operative position.

Before explaining the invention we shall describe a calculating machine of known construction in which our invention may be embodied. Such a machine is illustrated in Figs. 1 and 2. A rotary shaft 63 is mounted in a pair of side walls 6l and 62 of the casing of the machine. operatively connected with the machine crank 64 through spur gears 65 and 66, and it carries a plurality of setting disks 67 each of which is provided with nine radial slot-s.

Within the latter radially shiftable teeth 68 85 are located which with lateral noses 68 engage in a cam slot 69 formed in a cam disk G9 loosely mounted on the shaft 63. By rotating the said cam disk on the shaft 63 by means of a handle 69 any desired 99- number of the teeth G8 can be shifted into a position beyond the periphery of the setting disks. The number of the teeth 68 shifted beyond the periphery of the setting disks represents the value to be introduced in the calculation in each column of the registering mechanism. In front of the said setting disks, the whole of which may be termed the setting mechanism, numeral wheels 7 are loosely mounted on a shaft 9 100 disposed parallel to the shaft 63. Each of the said numeral wheels is provided at its circumference with the numerical characters from l to 9 and the O sign, and

one of the said characters of each column of gear 73 secured to its side which is provided 110 The said shaft is 80 CFL oppoeite enti to the rocking lever hnsvthe tentieney to holfi. the seme in the position in .vhieh the pin 7* is retracted eyvay' from the circumference of the Zimmerei svheeia Upon the rotation of the nnmerni Wheei :mii onee for e: eh rote on tb of the i'ree enti 3 of the iever 23 res against' e reietiveiy stationary joeri; which in the shown Consists refiler 6 mounted en a Siirie ti. he position of the roiler is such, that the pin 74 Shiftefi the lever 3 ie rocked anni ente/"erde, when the letter paesee along the rocking* lever 764, so that e ten is carried from one numeral. Wheei to the numeral Whe/ei 03 the next higher order. it it is flesired to interrupt the cerryingoperation between the tivo sets of numeral Avhcele the relier G and the slide 6 ere shifted to the left by nie-ens oi e handle 62 provided on the slide grani projecting to the outside of the `Wbcn the relier has thus been Shiite"y 'to the lei't and out of the pet-h of the rockingr lever 3, 'the pin 74 can not be shifted on'aavmrtis, so that no carrying takes place between the numeral Wheeis connected by tbe cerryingwleviee. Thereforethe ealenietione performed on the two of nue inermi een not. interfere with each other. h

example shown in. Fig. Li the construction of the setting mechanism end the registering n'ieelienism is the seine ee the one described with reference to Figs. l, 2 ene? The carrying mechanism, the

D.. eeriying (ievice incinte@ between 'the high" est; nnnierel Wheel of the right henri set one the lowest numeral wheel of the left -hen'il eet ie conetrncteci in e slightly dii-A ferent wey'. Ae shownethe rocking lever 'i ie not fiireetly operated by the pin 75, monnteel, on the nnmemi Wheel L7, but through the intermediary of e roclfzer 76 which is adapted to be rocked by the. pin 75. The roeler so mounted, that it can be shifted out of the path of the pin 752 In the exemple Shown it ie for this pnrpoe jointe eci to e lever 92 which is pivotoiiy mounted on the bottom of the carriage et 92". Nori*- ina-iiy the rocker '76"i is nel ont of the path of the pin 75 and in inoperative position by Ineens a Compressed spring 91 attached with one enti to the lever 92 or to the rocker 766 and with the opposite end to e bracket 14 rising from the bottom of the slide l. If it is desired to throw the carrying mecha- 'mism into operative position a Wedge 93 located beiow -the lever 92 is shifted inten :Lily eo to torce the seid lever 92 and the rocker 76" npwerdsageinst the action oi the spring QL At its top the brecket 14 is 'formed With an inclined shonler Ml which in the imperative position of the rocker 76 engages a jpin 15 of the iotter, so as to preventthe same from dropping between the nunicrei Wheelsi We claim herein es our invention:

l. In calculating machine, the combination with the Setting; mechanism the registering mechanism comprising e plurality of numeral Wheels, anni means to bring said setting mechanism, into cooperation with either one of two Sete of numeral Wheels, of carrying mechanism locted intermediate seid sets oi numeral wheels sind comprising e rocking member eontrelled by the revelak tion of one numeral Wheel emi ineens to transmit carrying operation from seid niember to the nuinerei Wheel of next higher order, und eiiile ineens associated with said member enti carrying e device to control tbe operative and inoperative position of the member. v l

2. In e calculating machine9 the combina-I tion with the Setting mechanism comprising setting disks provided with ehifteble teeth ,and means to shiftthe desired number of teeth into operative position, the registering mechanism eoniprislmg it plurality of nnnierei Wheels menne to bring seid settingl xneeheniem into cooperation with either one of two sets of numeral Wheels, of carrying mechanism located intermediate Said sete of numeral Wheels and mprising a rocking member controlled by the revolution of one nnmeralgifvheel and means to transmit carrying operation from-said member to the numeral wheel of next higher order, anni slide means to control saidA member as to its inoperative and operative position.

3. In e calculating machine;4 the combination Vith the setting mechanism, the regis tering' mechanism comprising-plurality of numeral Wheels., Vand means to bring said setting mechanism into coperation with either one of; two sete of numeral Wheels, of carrying mechanism loca-ted intermediate said sets of numeral Wheels and'eomprising :i member controlled by the revolution of one numeral wheel, rocker controlled by seid ine'rnben means to transmit carrying operation from said rocker. to the numeral Wheel of next higher order, and slide means to move seid-member out of operative position relatively to the rocker.

In testimony whereof we have hereunto set our hands in presence of mvo subscribing Witnesses. A

FRANZ TRINKS. "CARL SCHALLER. Witnessesz WXLHELM Lemme, Juntos Seaman. 

